pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8339-Jack_Daniels_Reel-A-32-3.ps) >>/Users/jc/w/tmp/Tune-8339-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/Scotland/reel/Jack_Daniels_Reel-A-32-3.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Form_83390.log 856 Log file, useful mostly for debugging
Form_83399.log 1639 Log file, useful mostly for debugging
Tune-8339-Jack_Daniels_Reel-A-32-3.abc 503 ABC music file with the extracted tune(s)
Tune-8339-Jack_Daniels_Reel-A-32-3.ps 35292 PostScript
Tune-8339-Jack_Daniels_Reel-A-32-3.txt 503 Plain-text file with the extracted tune(s)
Tune-8339-get.log 4731 Log file, useful mostly for debugging
Tune-83394-get.log 1074326 Log file, useful mostly for debugging
Tune-83396-get.log 4305 Log file, useful mostly for debugging
Tune-83399-get.log 4417 Log file, useful mostly for debugging
These files should be available for 24 hours.